Home / 3,688.25-5,529.13-1,379.21

Finding the Fourth Proportional to 3,688.25, 5,529.13 and 1,379.21

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Solution

The fourth proportional to 3,688.25, 5,529.13 and 1,379.21 is: 2,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.25 : 5,529.13 = 1,379.21 : x
  2. Step 2: Convert to fraction form
    3,688.25/5,529.13 = 1,379.21/x
  3. Step 3: Cross multiply
    3,688.25x = 5,529.13 × 1,379.21
  4. Step 4: Simplify right side
    3,688.25x = 7,625,800.29
  5. Step 5: Solve for x
    x = 7,625,800.29/3,688.25
  6. Step 6: Final answer
    x = 2,067.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.